Fill in the blank:
The source of all energy is the ______.
sun
100
An organism that creates its own energy from the sun
producer
100
Wheat => Grasshopper => Mouse => Owl
What is the producer in this food chain?
wheat
100
Draw a picture that shows where plants get the matter they need to create food.
Your picture should include:
Roots taking water from the soil
Sun giving the plant energy
Carbon dioxide in through the leaves
Oxygen out through the leaves
100
What does a food chain show us?
How energy moves through an ecosystem.
200
Wheat => Grasshopper => Mouse => Owl
What SHOULD be written to the left of "wheat?"
sun
200
An organism that eats other organisms for food and energy
a consumer
200
Wheat => Grasshopper => Mouse => Owl
What is the herbivore in this food chain?
grasshopper
200
What organism gets energy from dead organisms?
decomposer
200
Arrange the steps of digestion to be in order:
1.acids in the stomach digest the food
2. food goes in the mouth and the teeth begin to break it down
3. nutrients from digested food move from the intestines into the bloodstream
4.waste moves from the large intestine out of the body
5.food is swallowed and travels down to the stomach
2, 5, 1, 3, 4
300
Which correctly shows the flow of energy in an ecosystem?
a) producer => decomposer => consumer
b) consumer => producer => decomposer
c) producer => consumer => decomposer
d) consumer => decomposer => producer
c) producer => consumer => decomposer
300
An organism that only eats producers
herbivore
300
In a food web, Mrs. Baker sees this one link:
Grasshoppers => Frogs
Which organism eats the other?
Frogs eat grasshoppers
300
Living organisms are classified based on:
a) how they reproduce
b) their speed of movement
c) the size of their communities
d) how they obtain their food
d) how they obtain their food
300
A species of plant or animal that is not native to an ecosystem is known as an ________________________.
Invasive Species.
400
In an ecosystem of humans, deer, grass, water, trees, fish, and rabbits, where does the energy originate (come from)?
the sun
400
An organism that eats only other animals for energy
carnivore
400
Ferns => Rabbit => Fox => Hawk => Fungus
Write down this food chain, and label each organism as a producer, consumer, or decomposer.
Wheat => Grasshopper => Mouse => Owl => Bacteria
Which organism is responsible for recycling nutrients?
bacteria
400
How do decomposers help ecosystems?
They break down waste and remains of dead organisms and release nutrients back into the soil.
500
As energy goes up a food chain, what happens to the AMOUNT of energy?
the energy transferred decreases
500
An organism that eats both consumers and producers for energy
omnivore
500
Create a food web of your own. You may use your own organisms, but be sure it makes sense! You must use at least 5 organisms! Label each organism and a producer, ordered consumer, or decomposer.
answers vary
500
How do decomposers affect plants in a community?
a) by making consumers stronger
b) by creating nutrients from dead organisms
c) by turning dead organisms into living ones
b) by creating nutrients from dead organisms
500
Name two natural ways an ecosystem can change.
Forest fire, season changes, tsunami, earthquake, volcanic eruption, etc.